The gravity feed batch solar heater is very simple to use.
重力供水太阳能热水器的操作方法很简单。
2
This is an experience report on over ten years chemical cleaning of high pressure feed water heater at Shanghai Baoshan Power Station.
这是一篇上海宝钢自备电厂十年来，高压给水加热器的化学清洗的情况报告。
3
A model is established to study how feed - water excursion affects the coal consumption, considering the relations between the temperature and the flux of the feed - water flowing out the heater.